Feed-regulating device for grain-drills.



.1 NliTED STATES ATENT C'FFICE.

ROBERT E. SCHLACHTER, OF CLAY CENTER, NEBRASKA, ASSIGNOR 'TO CLAY CENTERMANUFACTURING COMPANY, OF CLAY CENTER, NEBRASKA.

FEED-REGULATING DEVICE FOR GRAIN-DRILLS.

SPECIFICATION forming part of Letters Patent No. 692,717, dated February4, 1902. Application filed October 1, 1901 Serial No. 77,179- (Nomodel.)

To all whom it may concern.-

Be it known that 1, ROBERT H. SCHLACHTER, a citizen of the UnitedStates, and a resident of Clay Center, in the county'of Clay and Stateof Nebraska, have invented a new and Improved Feed-Regulating Device forGrain- Drills, of which the following is a full, clear, and exactdescription.

The object of my invention is to providea means whereby the amount ofseed delivered from the discharge-opening of a grain-drill feed-box maybe simply and accurately regulated. To this end I em ploy a threadedsleeve, through which the shaft carrying the feed mechanism passes, saidsleeve when turned shifting the shaft and the feed mechanism across thedischarge-opening of the feed-box, thereby regulating the amount of seedfed with the utmost nicet-y. In order to prevent a displacement of theshaftand feed mechanism when thus adjusted, I have provided a simplelocking device for the sleeve.

The invention will be fully described hereinafter and the features ofnovelty pointed out in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both figures.

Figure 1 is a partial longitudinal vertical section of a portion of thefeed-box of a graindrill with my invention employed, and Fig. 2 is anend view of the feed-box shown in Fig. 1 with the improvement applied.The feed-box 1 has one or more dischargeopenings 2, communicating with acup 3, through which the seed is delivered. Beneath the feed-box l andthe cup 3 a shaft 4 is mounted, which passes through a sleeve 5,suspended from the box 1. The shaft t carries the feeding mechanism,which com prises a hollow smooth-faced follower 6 and a feeding-barrel7, provided with a peripheral s-e ries of ribs 8, extendinglongitudinally relatively to the barrel. When the shaft is shifted inone direction, the smooth-faced follower 6 is moved across the cup 3,therebycutting off the supply of seed. When the shaft is shifted in theother direction the smooth-faced follower 6 is moved from the opening ofthe cup 3, so that the ribbed feed-barrel 7 may deliver the seed. Thequantity of seed delivered can be regulated by shifting the shaft moreor less, so that the smooth-faced follower 6 is only partially withdrawnfrom the opening of the cup 3. The feed-barrel is held in position onthe shaft by pins 9, and the movement of the shaft in one direction islimited by the pin 10, adapted to engage the sleeve 5.

In order accurately to regulate the amount of seed fed by the barrel 7,Iemploy a sleeve 11, through which the end of the shaft 4 looselypasses, said sleeve being scre W threaded in abracket 12, carried by abase 13, integrally formed with the end 14 of the feedbox. The sleeve 11is provided with a notched flange 15 on its outer end. To the base 13 adog 16 is pivoted, having an outwardly-projecting arm 17, serving toengage the notched flange 15, as shown particularly in Fig. 2, for thepurpose of holding the sleeve 11 against rotation. Pins 18 are passedthrough the shaft 4 and serve to communicate the motion of the sleeve 11to the shaft 4.

In order to regulate the amount of seed which is fed through the cup 3,the sleeve 11,

abutting against the pin 18, is turned, thereby shifting the shaft 4,together with the feedbarrel 7, and more or less withdrawing thefollower 6 from the opening of the cup 3. It is evident that if thesleeve be turned in one direction the amount of seed delivered will beincreased and that if the sleeve be turned in the other directionthe'slnooth-faced follower 6 will be drawn across the opening of the cup3, thereby totally or partially cutting off the supply of seed. I

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. In a grain-drill,the combination with a shaft and feeding mechanism carried by the shaft;of a sleeve constituting a bearing for one end of the shaft and serving,when rotated, to reciprocate the shaft; a notched flange on the sleeve;and means adapted to engage the notched flange to hold the sleeveagainst rotation.

2. The combination wit-h a grain-drill feedboX, a support therefor, ashaft mounted beneath the feed-box, and feeding mechanism carried by theshaft; of a sleeve threaded in In witness whereof I have signed my nameto this specification in the presence of two subscribing witnesses.

ROBERT H. SOHLACI'ITER.

the feed-box support, said sleeve constituting a bearing for one end ofthe shaft and serving when turned to reciprocate the shaft; a notchedflange on the sleeve; anda dog piv- W. L. PALMER, V. K. MoDoWELL.

engage the notched flange to hold the sleeve 5 oted 0n the feed-boxsupport and adapted to Witnesses:

against rotation.

